The pressure of the blood against the inner walls of the blood vessels, varying in different parts of the body during different phases of contraction of the heart and under different conditions of health, exertion.

Blood pressure is typically recorded as two numbers, written as a ratio like this:

[See Image Below for example]

Systolic: The top number, which is also the higher of the two numbers, measures the pressure in the arteries when the heart beats (when the heart muscle contracts).

Diastolic: The bottom number, which is also the lower of the two numbers, measures the pressure in the arteries between heartbeats (when the heart muscle is resting between beats and refilling with blood).

Which number is more important, top (systolic) or bottom (diastolic)?

Typically more attention is given to the top number (the systolic blood pressure) as a major risk factor for cardiovascular disease for people over 50 years old. In most people, systolic blood pressure rises steadily with age due to increasing stiffness of large arteries, long-term build-up of plaque, and increased incidence of cardiac and vascular disease.

A normal Blood Pressure should have a Systolic(upper #) around 120mmHg and Diastolic (lower #) 80mmHg, but if you BP value measurement has 20/10 differences (less or greater that the normal 120/80), you should see your Doctor for treatment. Alghough single BP reading can not be used to acertain your BP value therefore it is recommended that you check it for some period before you make conlcution on your BP level, Because certain factors can affect your BP level over time. Exercise, Environment, Stress can affect your BP Readings
Factors Affecting BP Reading

very informative thread. i have noted the salient points.

over 20 views to the thread but nobody wan comment. but if u write about PDP or APC, chants of "SAI BUHARI" and "SAI GEJ" will rent the air

The Topic is Very important especially when almost everybody is busy with politics, when all is over, they will need to to check their BP, even GMB or GEJ dare not fail to check their weekly during this campaign